/*
    This file is part of the substandard lisp implementation of Standard Lisp
    Copyright (C) 2011 Nicky Nickell

    substandard lisp is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

(de round (x)
  (if (fixp x)
    x
    (floor (plus x 0.5))))

/*---
name: round

doc: |
  explaining what round is / how it is used!

tests: |
  (round 1.1) -> 1
  (round 1.6) -> 2
  (round -1.1) -> -1
  (round -1.6) -> -2
  (round 2.5) -> 3
  (round -2.5) -> -2
...*/
